68 HEMORRHAGIC SEPTICAEMIA 



6. Smith. Preliminary investigations concerning infectious pneu- 

 monia in swine (Swine pla'gue). Annual Report Bureau of Animal 

 /ndustry U. S. Dcpt. of Agriculture. i8S6. p. 76. 



7. Smith, Special report on swine plague. Bureau of Animal 

 Industry. U. S. Dept. of Agriculture. 1S91. 



8. Smith AND Moore Experiments on the production of immunity 

 in rabbits and guinea pigs with reference to hog cholera and swine plague 

 bacteria. Bulletin No. 6. Bureau of Animal Industry, U. S. Dept. of 

 Agriculture. 1S94. p. 65. 



9. Welch and Clements. Remarks on hog cholera and swine 

 plague. First International Congress of America. Chicago. 1893. 



HEMORRHAGIC SEPTICAEMIA IN CATTLE. 



§ 55. Characterization. Hemorrhagic septicsemia in 

 cattle i.s determined by an acute attack tisuall}' running a 

 rapid course and terminating fatally. The lesions consist 

 largely of hemorrhagic areas more or less widely distributed 

 throughout the body and due to the presence of a specific 

 microorganism. 



§ 56. History. In 1879, Bollinger described under the 

 name of Wild iind Rinderseuche an epizootic disease which 

 killed a large number of wild boars and deer in the Royal 

 game preserves of Munich. After the disease in these animals 

 had died out, the domestic cattle in the neighborhood began 

 to die of the same or a ver}' similar affection. He reports it to 

 be sudden in its onset and rapidly fatal in its course, with a 

 mortality of 90 per cent. Death occurred in from 12 hours to a 

 few days after the first appearance of symptoms. 



Two forms are described, (i) an exanthematous and (2) a 

 pectoral. The post-mortems showed in the exanthematous 

 form large and small hemorrhages disseminated throughout the 

 muscles and viscera. The intestines alwa3's exhibited large 

 numbers of ecchymotic areas, while the submucous tissue was 

 infiltrated with a serous exudate. Large hemorrhagic tumors 

 infiltrated with serum were abundant in the subcutaneous tissue 

 and penetrated the muscles. The mucous membranes of the 

 tongue, lar^-nx and pharynx and the lymphatic glands of these 

 regions were swollen and infiltrated with more or less bloody 

 serum. In the pectoral form, a hemorrhagic lobular pnetimonia. 



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